L8P Crate Engine 523hp 543lbft

More Power from Our Largest

Displacement LT Engine!

We’ve optimized every cubic inch of our largest-displacement LT engine with the

unique L8P performance crate engine. With 523 horsepower and 543 lb.-ft. of

torque, this package combines the displacement and heavy-duty strength of our

production-based L8T 6.6L engine plus a unique LT2-based camshaft.

It’s all rooted in the tough foundation of the L8T, with a forged steel crankshaft,

high-strength parts, high-flow heads and composite intake manifold. We then

add a more performance-oriented valvetrain, including valves, springs, and a

unique non-AFM (Active Fuel Management) LT2-based camshaft. The net result

is an increase of 122 horsepower and 79 lb.-ft. of torque over the production

6.6L engine.

Our L8P crate engine package comes complete from the throttle body to the oil

pan, including the PCV tube, evap tube, oil dipstick, oil fill tube and cap. It does

not include the controller, harness, oxygen sensors or a Front-End Accessory

Drive system. See Installation Notes below for recommendations.

INSTALLATION NOTES

• Engine is shipped with high-pressure direct-injection fuel pump installed

• Front End Accessory Drive system must be ordered separately and

includes hydraulic power steering, with center pulley. Pulley-mounted fan

not recommended. See page 107 for options.

• Includes 8-bolt flexplate for automatic transmissions

• Use with Engine Control kit 19435524 (must use 6L80-E transmission)